<script setup>
import { ref } from 'vue'
import { loginApi } from "@/api/login"; //导入登录校验的请求函数
import { ElMessage } from 'element-plus'; //导入ElementPlus的消息提示工具
import router from '@/router'; //导入路由对象router

let loginForm = ref({ username: '', password: '' })

//登录校验
const login = async () => {
  //向后端发请求进行登录校验，得到结果
  const result = await loginApi(loginForm.value);
  if (result.code == 1) {
    ElMessage.success("登录成功");
    //将后端返回的登录结果存储到浏览器的localStorage中。因为localStorage只能存储字符串的键值，所以要将登录结果转换字符串
    localStorage.setItem("loginInfo", JSON.stringify(result.data));
    //通过路由实例对象的push方法，跳转到/（/路径对应的是Layout组件，左侧是菜单栏，右侧显示内容）
    router.push("/");
  }else{
    //如果登录失败，将后端返回的错误消息弹窗提示出来
    ElMessage.error(result.msg);
  }
}
//重置
const reset = () => {
  //将登录表单重置成空的
  loginForm.value = {username: '', password: ''};
}
</script>

<template>
  <div id="container">
    <div class="login-form">
      <el-form label-width="80px">
        <p class="title">Tlias智能学习辅助系统</p>
        <el-form-item label="用户名" prop="username">
          <el-input v-model="loginForm.username" placeholder="请输入用户名"></el-input>
        </el-form-item>

        <el-form-item label="密码" prop="password">
          <el-input type="password" v-model="loginForm.password" placeholder="请输入密码"></el-input>
        </el-form-item>

        <el-form-item>
          <el-button class="button" type="primary" @click="login">登 录</el-button>
          <el-button class="button" type="info" @click="reset">重 置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<style scoped>
#container {
  padding: 10%;
  height: 410px;
  background-image: url('../../assets/bg1.jpg');
  background-repeat: no-repeat;
  background-size: cover;
}

.login-form {
  max-width: 400px;
  padding: 30px;
  margin: 0 auto;
  border: 1px solid #e0e0e0;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
  background-color: white;
}

.title {
  font-size: 30px;
  font-family: '楷体';
  text-align: center;
  margin-bottom: 30px;
  font-weight: bold;
}

.button {
  margin-top: 30px;
  width: 120px;
}
</style>